iPad 2 dock that works with a case?

[jtfolden]

I have a couple of cases for my iPad 2, both are "slim fit" hard cases that are compatible with the Smart Cover.

I was wanting to buy a charging Dock but it's my understanding the Apple OEM dock will not work with a case on the iPad. Is there a 3rd party dock that will work? I find it surprising with the huge number of cases available that there's not a readily available dock to accommodate a little extra thickness.

Thanks!
John